[ 96.312504][ T28] audit: type=1800 audit(1579467799.237:27): pid=9614 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 96.372477][ T28] audit: type=1800 audit(1579467799.237:28): pid=9614 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 97.224065][ T28] audit: type=1800 audit(1579467800.217:29): pid=9614 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 97.245253][ T28] audit: type=1800 audit(1579467800.217:30): pid=9614 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.30' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 106.276705][ T9781] netlink: 20 bytes leftover after parsing attributes in process `syz-executor407'. [ 106.286468][ T9786] netlink: 20 bytes leftover after parsing attributes in process `syz-executor407'. [ 106.333456][ T9785] netlink: 20 bytes leftover after parsing attributes in process `syz-executor407'. [ 106.392691][ T9787] netlink: 20 bytes leftover after parsing attributes in process `syz-executor407'. [ 106.452751][ T9788] netlink: 20 bytes leftover after parsing attributes in process `syz-executor407'. executing program executing program executing program executing program executing program executing program [ 106.824211][ T9802] netlink: 20 bytes leftover after parsing attributes in process `syz-executor407'. [ 106.836728][ T9804] netlink: 20 bytes leftover after parsing attributes in process `syz-executor407'. [ 106.849286][ T9807] netlink: 20 bytes leftover after parsing attributes in process `syz-executor407'. [ 106.862099][ T9810] netlink: 20 bytes leftover after parsing attributes in process `syz-executor407'. [ 106.872290][ T9802] list_del corruption, ffff8880a4a3b800->prev is LIST_POISON2 (dead000000000122) [ 106.885501][ T9802] ------------[ cut here ]------------ [ 106.890988][ T9802] kernel BUG at lib/list_debug.c:48! [ 106.896988][ T9802] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 106.903203][ T9802] CPU: 1 PID: 9802 Comm: syz-executor407 Not tainted 5.5.0-rc5-syzkaller #0 [ 106.911998][ T9802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 106.922275][ T9802] RIP: 0010:__list_del_entry_valid.cold+0x37/0x4f [ 106.928690][ T9802] Code: be fd 0f 0b 4c 89 ea 4c 89 f6 48 c7 c7 a0 65 71 88 e8 a0 ba be fd 0f 0b 4c 89 e2 4c 89 f6 48 c7 c7 00 66 71 88 e8 8c ba be fd <0f> 0b 4c 89 f6 48 c7 c7 c0 66 71 88 e8 7b ba be fd 0f 0b cc cc cc [ 106.948379][ T9802] RSP: 0018:ffffc90002117478 EFLAGS: 00010282 [ 106.954453][ T9802] RAX: 000000000000004e RBX: ffff8880a4a3b800 RCX: 0000000000000000 [ 106.962709][ T9802] RDX: 0000000000000000 RSI: ffffffff815e53a6 RDI: fffff52000422e81 [ 106.970761][ T9802] RBP: ffffc90002117490 R08: 000000000000004e R09: ffffed1015d26621 [ 106.978735][ T9802] R10: ffffed1015d26620 R11: ffff8880ae933107 R12: dead000000000122 [ 106.987162][ T9802] R13: ffffffff8a4c7270 R14: ffff8880a4a3b800 R15: ffff8880a30c0300 [ 106.995263][ T9802] FS: 00007fd585a01700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 107.004239][ T9802] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 107.010886][ T9802] CR2: 00007f043f3e3af0 CR3: 0000000099d25000 CR4: 00000000001406e0 [ 107.019073][ T9802] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 107.027042][ T9802] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 107.035046][ T9802] Call Trace: [ 107.038325][ T9802] __nf_tables_abort+0x1e53/0x2a50 [ 107.043423][ T9802] ? nfnl_err_del+0x115/0x170 [ 107.048178][ T9802] nf_tables_abort+0x17/0x30 [ 107.053300][ T9802] nfnetlink_rcv_batch+0xa5d/0x17a0 [ 107.059062][ T9802] ? nf_tables_delobj+0x8f0/0x8f0 [ 107.064088][ T9802] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 107.069888][ T9802] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.076564][ T9802] ? apparmor_capable+0x497/0x900 [ 107.081830][ T9802] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.088139][ T9802] ? __nla_validate_parse+0x2d0/0x1ee0 [ 107.093613][ T9802] ? cap_capable+0x205/0x270 [ 107.098323][ T9802] ? nla_memcpy+0xb0/0xb0 [ 107.102651][ T9802] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.108886][ T9802] ? ns_capable_common+0x93/0x100 [ 107.114167][ T9802] ? __nla_parse+0x43/0x60 [ 107.118571][ T9802] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 107.124382][ T9802] nfnetlink_rcv+0x3e7/0x460 [ 107.128969][ T9802] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 107.134408][ T9802] ? netlink_deliver_tap+0x24a/0xbe0 [ 107.139690][ T9802] ? __kasan_check_write+0x14/0x20 [ 107.144803][ T9802] netlink_unicast+0x58c/0x7d0 [ 107.150160][ T9802] ? netlink_attachskb+0x870/0x870 [ 107.155268][ T9802] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 107.160985][ T9802] ? __check_object_size+0x3d/0x437 [ 107.166174][ T9802] netlink_sendmsg+0x91c/0xea0 [ 107.171185][ T9802] ? netlink_unicast+0x7d0/0x7d0 [ 107.176115][ T9802] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 107.181660][ T9802] ? apparmor_socket_sendmsg+0x2a/0x30 [ 107.187470][ T9802] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 107.193717][ T9802] ? security_socket_sendmsg+0x8d/0xc0 [ 107.199318][ T9802] ? netlink_unicast+0x7d0/0x7d0 [ 107.204245][ T9802] sock_sendmsg+0xd7/0x130 [ 107.208800][ T9802] ____sys_sendmsg+0x753/0x880 [ 107.213572][ T9802] ? kernel_sendmsg+0x50/0x50 [ 107.218238][ T9802] ? __fget+0x35d/0x550 [ 107.222388][ T9802] ? find_held_lock+0x35/0x130 [ 107.227146][ T9802] ___sys_sendmsg+0x100/0x170 [ 107.231841][ T9802] ? sendmsg_copy_msghdr+0x70/0x70 [ 107.237348][ T9802] ? __kasan_check_read+0x11/0x20 [ 107.242404][ T9802] ? __fget+0x37f/0x550 [ 107.246568][ T9802] ? ksys_dup3+0x3e0/0x3e0 [ 107.251102][ T9802] ? __do_page_fault+0x56a/0xd80 [ 107.256033][ T9802] ? __fget_light+0x1a9/0x230 [ 107.260721][ T9802] ? __fdget+0x1b/0x20 [ 107.264820][ T9802] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 107.271059][ T9802] __sys_sendmsg+0x105/0x1d0 [ 107.275923][ T9802] ? __sys_sendmsg_sock+0xc0/0xc0 [ 107.280969][ T9802] ? down_read_non_owner+0x490/0x490 [ 107.286335][ T9802] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 107.291789][ T9802] ? do_syscall_64+0x26/0x790 [ 107.296463][ T9802] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 107.302540][ T9802] ? do_syscall_64+0x26/0x790 [ 107.307308][ T9802] __x64_sys_sendmsg+0x78/0xb0 [ 107.312070][ T9802] do_syscall_64+0xfa/0x790 [ 107.316569][ T9802] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 107.322467][ T9802] RIP: 0033:0x447cc9 [ 107.326360][ T9802] Code: e8 dc e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 107.346200][ T9802] RSP: 002b:00007fd585a00ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 107.354604][ T9802] RAX: ffffffffffffffda RBX: 00000000006ddc28 RCX: 0000000000447cc9 [ 107.362565][ T9802] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 107.370539][ T9802] RBP: 00000000006ddc20 R08: 0000000000000000 R09: 0000000000000000 [ 107.378654][ T9802] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc2c [ 107.386744][ T9802] R13: 00007ffe6d6cf50f R14: 00007fd585a019c0 R15: 20c49ba5e353f7cf [ 107.394717][ T9802] Modules linked in: [ 107.400536][ T9802] ---[ end trace c558ec85054d3922 ]--- [ 107.406059][ T9802] RIP: 0010:__list_del_entry_valid.cold+0x37/0x4f [ 107.412571][ T9802] Code: be fd 0f 0b 4c 89 ea 4c 89 f6 48 c7 c7 a0 65 71 88 e8 a0 ba be fd 0f 0b 4c 89 e2 4c 89 f6 48 c7 c7 00 66 71 88 e8 8c ba be fd <0f> 0b 4c 89 f6 48 c7 c7 c0 66 71 88 e8 7b ba be fd 0f 0b cc cc cc [ 107.432619][ T9802] RSP: 0018:ffffc90002117478 EFLAGS: 00010282 [ 107.438817][ T9802] RAX: 000000000000004e RBX: ffff8880a4a3b800 RCX: 0000000000000000 [ 107.446829][ T9802] RDX: 0000000000000000 RSI: ffffffff815e53a6 RDI: fffff52000422e81 [ 107.454875][ T9802] RBP: ffffc90002117490 R08: 000000000000004e R09: ffffed1015d26621 [ 107.462897][ T9802] R10: ffffed1015d26620 R11: ffff8880ae933107 R12: dead000000000122 [ 107.470887][ T9802] R13: ffffffff8a4c7270 R14: ffff8880a4a3b800 R15: ffff8880a30c0300 [ 107.478997][ T9802] FS: 00007fd585a01700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 107.488085][ T9802] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 107.495165][ T9802] CR2: ffffffffff600400 CR3: 0000000099d25000 CR4: 00000000001406e0 [ 107.503342][ T9802] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 107.511619][ T9802] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 107.520065][ T9802] Kernel panic - not syncing: Fatal exception [ 107.527972][ T9802] Kernel Offset: disabled [ 107.532311][ T9802] Rebooting in 86400 seconds..